Chalcogen, Katiyar, Optical properties

• O-Zn
• Fe-Nb-O-Pb
• Co-O-Zn
• O-Sn-Sr
• Bi-Fe-O
• phonons
• Raman spectra
• wavenumber of optical phonon
• optical absorption
• wavenumber of transverse optical phonon
• chalcogen
• oxide
• transitional
• disordered
• nonmetal
• tetragonal
• hexagonal
• monoclinic
• orthorhombic
• cubic